.demo {
  display: flex;
}

.demo .left_console {
  width: 30%;
  box-shadow: 10px 10px 10px 10px #ccc;
}

.demo .left_console .xuanxiang {
  width: 100%;
  height: 100vh;
}

.demo .left_console .xuanxiang .images {
  background-color: green;
  width: 200px;
  height: 200px;
  display: flex;
  flex-direction: column;
  cursor: move;
}

.demo .center_console {
  flex: 1;
  background-color: #eef2f8;
  position: relative;
  z-index: 20;
}

.demo .right_console {
  width: 20%;
  z-index: 20;
  background-color: #fff;
  position: relative;
}
